Reply To: Shorty 18 mm spark plugs?

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October 20, 2019 at 12:40 pm #185637
WAYNE
Participant

    Canada Member

    Newer plugs are longer than the originals. Best to use knurled nuts on old plugs. On my PO-15 I used modern plugs and then wrapped the tops with electrical tape. Rubber boots were an option, but I didn’t want to change the original rajah terminals since the wires were in nice condition.

    Wayne
    Upper Canada Chapter

    uccaomci.com